Change cc::ElementId to be a uint64_t

cc/layers/layer_unittest.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/layer.h"
 
 #include <stddef.h>
 
 #include "base/memory/ptr_util.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 911 matching lines @@
              MainThreadScrollingReason::kNonFastScrollableRegion));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetNonFastScrollableRegion(
       Region(gfx::Rect(1, 1, 2, 2))));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetTransform(
       gfx::Transform(0.0, 0.0, 0.0, 0.0, 0.0, 0.0)));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetDoubleSided(false));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetTouchEventHandlerRegion(
       gfx::Rect(10, 10)));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetForceRenderSurfaceForTesting(true));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetHideLayerAndSubtree(true));
-  EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetElementId(ElementId(2, 0)));
+  EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetElementId(ElementId(2)));
   EXPECT_SET_NEEDS_COMMIT(
       1, test_layer->SetMutableProperties(MutableProperty::kTransform));
 
   EXPECT_SET_NEEDS_FULL_TREE_SYNC(1, test_layer->SetMaskLayer(
       dummy_layer1.get()));
 
   // The above tests should not have caused a change to the needs_display flag.
   EXPECT_FALSE(test_layer->NeedsDisplayForTesting());
 
   // As layers are removed from the tree, they will cause a tree sync.
@@ skipping 435 matching lines @@
   EXPECT_EQ(1, did_receive_result_from_different_source);
   EXPECT_EQ(1, did_receive_result_from_anonymous_source);
   EXPECT_EQ(1, did_receive_second_result_from_this_source);
 }
 
 TEST_F(LayerTest, AnimationSchedulesLayerUpdate) {
   // TODO(weiliangc): This is really a LayerTreeHost unittest by this point,
   // though currently there is no good place for this unittest to go. Move to
   // LayerTreeHost unittest when there is a good setup.
   scoped_refptr<Layer> layer = Layer::Create();
-  layer->SetElementId(ElementId(2, 0));
+  layer->SetElementId(ElementId(2));
   EXPECT_SET_NEEDS_FULL_TREE_SYNC(1, layer_tree_host_->SetRootLayer(layer));
   auto element_id = layer->element_id();
 
   EXPECT_CALL(*layer_tree_host_, SetNeedsUpdateLayers()).Times(1);
   layer_tree_host_->SetElementOpacityMutated(element_id,
                                              ElementListType::ACTIVE, 0.5f);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
   EXPECT_CALL(*layer_tree_host_, SetNeedsUpdateLayers()).Times(1);
   gfx::Transform transform;
@@ skipping 13 matching lines @@
 TEST_F(LayerTest, ElementIdAndMutablePropertiesArePushed) {
   scoped_refptr<Layer> test_layer = Layer::Create();
   std::unique_ptr<LayerImpl> impl_layer =
       LayerImpl::Create(host_impl_.active_tree(), 1);
 
   EXPECT_SET_NEEDS_FULL_TREE_SYNC(1,
                                   layer_tree_host_->SetRootLayer(test_layer));
 
   EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(2);
 
-  test_layer->SetElementId(ElementId(2, 0));
+  test_layer->SetElementId(ElementId(2));
   test_layer->SetMutableProperties(MutableProperty::kTransform);
 
   EXPECT_FALSE(impl_layer->element_id());
   EXPECT_EQ(MutableProperty::kNone, impl_layer->mutable_properties());
 
   test_layer->PushPropertiesTo(impl_layer.get());
 
-  EXPECT_EQ(ElementId(2, 0), impl_layer->element_id());
+  EXPECT_EQ(ElementId(2), impl_layer->element_id());
   EXPECT_EQ(MutableProperty::kTransform, impl_layer->mutable_properties());
 }
 
 }  // namespace
 }  // namespace cc